Air-heating system



2 sheets-sheet 2'.

(No Model.)

0. S. & B. HOOD. AIR HEATING SYSTEM.

Patented Dec. 22, 1891.

FIG

ON CD FIG- FIG

FIG- 4- UNITED STATES PATENT OFFICE.

CYRUS S. HOOD AND EDDY HOOD, OF OORNING, NElV YORK.

AIR-HEATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 465,562, dated December 22, 1891.

Application filed March '7, 1891. Serial No. 384,070. (No model.)

To all whom it may concern.-

.Be it known that we, CYRUS S. HOOD and EDDY HOOD, citizens of the United States, residing at Corning, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Air- Heating Systems; and We do hereby declare the following to be a full,clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to those systems of air-heating wherein the various rooms of a building are supplied with heated air supplied through conducting-pipes branching upward from a furnace or heater located in the cellar or basement. In such systems the pipes have their outlets into the rooms through openings in the floor or side walls thereof, and it is customary to provide said openings with registers consisting of a casing coupled to the pipe and having a grated face-plate, said casing being furthermore provided with a slat-valve whereby the occupant of the room may control directly the amount of air admitted. Serious defects are attendant upon the employment of systems as thus organized. Thus the closing of the slat-valve nevertheless leaves the pipe leading to the room constantly filled with hot air, which air might otherwise be used to advantage for heating the remaining rooms, witha corresponding saving of fuel. Moreover, as the slat-valve is required to move easily, it is not made to-fit the casing snugly, so as to absolutely guard against leakage, and as a consequence more or less hot air is admitted despite the closing of the valve, the loss from this cause being aggravated in those instances where the pipe ascends to a considerable height or where the room-ventilationis strong. Another disadvantage is that the registers, by reason of their multiplicity of parts and joints, (which at the same time render them expensive,) serve to catch or collect dust and dirt, in contact with which the air passes or which the air-current, when of increased velocity, takes'up and disseminates throughout the room, whereby, although complicated and expensive to manufacture, they are inferior and objectionable for sanitary reasons. Some of the objections noted it has been sought to obviate by providing the air-conducting pipes with valves or dampers at or near the furnace, said dampers being provided with a stem whereby they could be turned so as to close the pipe. In order to manipulate such dampers, it has been necessary, however, to enter the furnace-room and eifect their adjustment, which is a matter of discomfort and inconvenience and is really impracticable in a buildingcontaining many rooms supplied by a correspondingly large number of pipes, whose arrangement in the furnace-room is confusing to the ordinary mind. The dampers chosen have also been in general of an unstable character in their construction or arrangement, so as to be incapable of reliable and permanent adjustment, especially after a period of considerable use, or have been too expensive or complicated to warrant their employment in practice.

By the use of the improvements constituting our present invention we are enabled to dispense entirely with the register valve and casing, to insure the absolute closing of the furnace-pipes at or near the furnaceitself by means of a damper and easing of inexpensive construction and reliable operation, and to effect the necessary manipulations for this residence.

In the accompanying drawings, illustrative of the invention, Figure 1 represents an interior sectional View of a building provided with an air-heating system embodying our improvements. Fig. 2 represents a like view illustrating separately one of the features of Fig. 3 represents in elevation purpose from each of the several rooms, as well as from a common point-as, forinstanfef in the janitors room or office of an apartment- 3 house or from the living-room of a private vided up intoa number of roomsas, for instance, the furnace-room E, the living-room. F, and adjacent rooms G H I.

In the drawings a door K is shown between.

shown more fully in Fig. 6. It consists of sheet metal so wrought as to present heads 0 c and an intermediate annular damper-seat d, all of which serve to strengthen and stiffen the casing, soas to enable it the better-tore sist the accidental blows: to which: furnacepipes and fittings are liable to be subjected.

A damper 6, consisting of a circular plate passes upward and encircles adevice at n 41 n or, whose function isto hold the damperopen when:- desired. As shown in the detailviews, this device consists, primarily, of a bracket. K, adapted for attachment to the ceiling-beamsof the f urnace-room and: having afixed' hub projection Z, provided with aitrans verse peripheral depression m. Upon thehub projection is: mounted the revol'uble flanged drum or sheave o,'hel d in place by the retain ing-plate p and bearing thegravity-pawlsas, adapted to engage. with the depression m; After encircling-the. flanged drum.- or sheavethe= governing-cord in each instance passes upward into the living-room or other upper: room of central control and terminatcsin a ring, as'shown more clearly in Figs. land 3, or in some other equivalent form of attachment. These rings serve to suspend or-connect: the. cords tea-board M, provided with an upper and a. lower row of peg'projecti'ons, as: indicated, said rows being'preferably'marked On and Off, for the convenience of the manipulator, and the ringsare also provided with solid outline characters-as, for instance, the numbers, as 1 23:4 5 -co-rre-' spondingto theparticular rooms to which-thedamper pipes lea-d, so that even inthe darknessthe right one may be selected tor operation without liability of error.

It will be observed by reference to Fig. I

nth'at..fron1 the cord terminating in the ring marked 3. upon the board M an additional cord lteadsto therooin Gand terminates thereat. inaring t, adapted to. be suspended from an upper or a lower peg projection upon the board N, located, near the pipe-inlet. The purposeyof this additional cord, which is attached to the main cord, is to permit the damper located in the pipe at, leading to the room G, to be operated from said room also, as well as. from the living-room. It

will be understood that for a like purpose similar additional or supplemental cords extend to; each of the other rooms from the corresponding main cords connected with the dampers governing the pipes leading to said rooms. To. avoid contusion of illustration, we have shown but one of these supplemental cords in Fig.1, and to better elucidate the relation existing between it and the main cord we have in Fig; 2- represented asl-ightly different arrangement: than that shown; in Fig.

1, the priincip-leofi operation, however; being ideirticail; In fact, the only essential; difiieronce is that; to: si mpliiiy the understanding of the operation we have inFig. 2i assumed the livingrrooimi F to be supplied. only: with means for governing the damper in the pipe leading to onie-o-f' the roomsas G. In said figure, Mi indicates thev peg-board. for the main cord; N, the peg-board for the supplemental cord; 'nhthe. device for holding open the damper, ando 4/ suitablieguide-pulleys.

In Fig. 1,. o indica'tes a guide-pulley. From-.thedrawingsandthe foregoi ng descrip ti on of parts the operation will be manifest. hen: the system is being installed. in a building, the main cordsarefirst attached 'to the weighted armsiof the dam pen-valves, said arms: being' normally in their lowermost: position, and theda-m-pers beingtherefiore closed. Each cord isthen i passed: once. entirelyaround the flanged drum of its. corresponding con trollingdevice, and is thencontinued up into the living-rooin,.:wherc itv receives its at tachment-ring; The supplemental cord" fi'or each: main. cord isthen attached tow the main cord and lied intothe-appropria-te room. It now it be desired to open a. damper v-a-lve, (as, tor: instance, the one governed by the main and supplemental cords shown in: Fig. 2,) the main or the supplemental cord, as thecasemay' be, is drawn-upward by the operator until the ringriis a short distance above the peg-board. The flanged drum is accord upon the corresponding peg proj ection in. the

row; marked On. To close the damper it is merely necessary to raise th'e cord in likemanner and letiit dropisuddenlmwhereby the inerti'a'of the revolving-flanged drunr carriesthepawl 3 past the notch and permits the valve to close, a condition of affairswhichis indicated by then placing the ring on the peg of the Off row.

It is characteristic of our invention that the same damper is adapted to be operated from the room whose air-conducting pipe it controls and also from the living-room by cords leading to a single controlling device, which device is located in the furnace-room, where it is accessible for repairs, but out of sight of the occupants of the other rooms, who have before them merely the simple and unobtrusive operating cord or cords, occupying but little space, and which may at slight expense be made sufficiently ornamental.

One of the distinguishing advantages which our improvements possess is that without leaving the living-room the hot air may be admitted into a bedroom in a remote part of the house, so that the bedroom, which has been unoccupied during the day, may be suitably warmed a short period before retiring. Thereupon, when the time for retiring has arrived, the occupant of the bedroom may proceed thereto, and if the room is not at the desired temperature he can permit the hot air to enter for a longer-period, finally closing the damper from the bedroom.

It is evident that the solid characters, letters, or numbers for indicating the various rooms may be in some instances attached to the peg-board instead of or in addition to the cords or chains.

Having thus described our invention, what we claim is- 1. In an air-heating system, the combination, with the rooms of abuilding, of a heater, a damper, a releasable supporting device for holding said damper open, a damper-operating cord leading into one of the rooms and adapted to trip the releasable supporting device, and a supplemental operating-cord leading into another room, substantially as described.

2. In an air-heating system, the combination, with the rooms of a building, of a heater, an air-conducting pipe leading therefrom to one of said rooms, said pipe being.provided with a damper, a releasable supporting device for holding said damper open, a damper-operating cord leading into the room into which the air-conducting pipe enters and adapted to trip the releasable supporting device, and a supplemental operating-cord leading into another room, substantially as described.

3. In an air-heating system, the combination, with the rooms of abuilding, of a heater, air-conducting pipes leading therefrom to the various rooms, said pipes being provided with dampers, damper-operating cords, each leading into the room into which the corresponding air-conducting pipe enters, supplemental dampers, operating-cords, each leading into.

theroom into which the corresponding airconducting pipe discharges, supplemental cords leading to acommon point of control in one of the rooms, raised characters corresponding in location to the several cords at the common point of control, and releasable supporting devices for holding the dampers open, the said releasable supporting devices being adapted to be tripped by the cords, substantially as described.

5. In an air-heating system, the combination,with a heater, of an air-conducting pipe leading therefrom, said pipe being provided with a damper-casing formed of sheet metal and having strengthening-beads nearits ends and an internal annular head at its central portion, a damper located within said casing and consisting of a bent plate, as described, and aweighted arm connected to said damper for keeping it normally closed, substantially as described.

In testimony whereof we aiiix our signatures in presence of two witnesses.

CYRUS S. HOOD. EDDY HOOD. Witnesses:

F. A. WILLIAMS, 0. M. GAMMAN. 

